Before 2015, growth is forecast to jump from 2 percent in 2011 to 13 percent in 2012, then to just under 30 percent in 2013. (See chart above.)

Intel raised some eyebrows earlier this year with a bullish prediction that ultrabooks would take 40 percent of the market in 2012. That seems highly unlikely in light of iSuppli's forecast and comments from Acer and Asus last month.

The Asus Aspire S3 ultrabook debuted at $899. But that may still be too pricey for mass-market appeal.
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But consumers' preferences will change as they become more acclimated to skinny devices that offer laptop-like utility, such as the iPad and upcoming Amazon Kindle Fire. "To compete with media tablets, notebook PCs must become sexier and more appealing to consumers," said Matthew Wilkins, an iSuppli analyst, in a statement today.

"With media tablets having already reversed the expansion of the previously fast-growing netbook platform, PC makers now are keenly aware that the notebook must evolve to maintain market growth and relevance," Wilkins wrote. Apple's iPad is driving a lot this growth.

Windows 8 will be a boon to ultrabooks. That operating system will have an advanced touch interface and be more power efficient--in effect, tailor-made for the ultrabook. And Intel's vision of the ultrabook is closely aligned with Windows 8, Wilkins said.

Prices will need to be closer to $699 or even $599 to trigger broader buying patterns, according to Deron Kershaw, an analyst at Gap Intelligence.

What will an ultrabook look like in 2015? Nobody knows, of course. Nor is it likely that a special naming scheme will even be relevant at that point. But expect a raft of very thin hybrid devices that offer the best of the laptop and tablet.

About the author

Brooke Crothers writes about mobile computer systems, including laptops, tablets, smartphones: how they define the computing experience and the hardware that makes them tick. He has served as an editor at large at CNET News and a contributing reporter to The New York Times' Bits and Technology sections. His interest in things small began when living in Tokyo in a very small apartment for a very long time.
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